/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package ru.miit.elearning.servlets.pages;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.hibernate.Session;
import ru.miit.elearning.hibernate.dao.ConfigurationDAO;
import ru.miit.elearning.hibernate.dao.HibernateUtil;
import ru.miit.elearning.hibernate.dto.AdditionalProperty;
import ru.miit.elearning.hibernate.dto.Plugin;
import ru.miit.elearning.hibernate.dto.PropertyType;

/**
 *
 * @author Cyclone
 */
public class ConfigurationServlet extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        Session session = null;

        try {

            //String sort = request.getParameter("sort");

            session = HibernateUtil.getSessionFactory().getCurrentSession();
            session.beginTransaction();
            ConfigurationDAO configurationDAO = new ConfigurationDAO(session);

            try {
                List<AdditionalProperty> curriculumPropList = configurationDAO.findCurriculumProperties();
                request.setAttribute("curriculumPropList", curriculumPropList);
            } catch (Exception e) {
                Logger.getLogger(ConfigurationServlet.class.getName()).log(Level.SEVERE, null, e);
                e.printStackTrace();
            }

            try {
                List<AdditionalProperty> userPropList = configurationDAO.findUserProperties();
                request.setAttribute("userPropList", userPropList);
            } catch (Exception e) {
                Logger.getLogger(ConfigurationServlet.class.getName()).log(Level.SEVERE, null, e);
                e.printStackTrace();
            }

            try {
                List<Plugin> pluginList = configurationDAO.findAllPlugins();
                request.setAttribute("pluginList", pluginList);
            } catch (Exception e) {
                Logger.getLogger(ConfigurationServlet.class.getName()).log(Level.SEVERE, null, e);
                e.printStackTrace();
            }

            try {
                List<PropertyType> propertyTypeList = configurationDAO.findAllPropertyTypes();
                request.setAttribute("propertyTypeList", propertyTypeList);
            } catch (Exception e) {
                Logger.getLogger(ConfigurationServlet.class.getName()).log(Level.SEVERE, null, e);
                e.printStackTrace();
            }



            getServletContext().getRequestDispatcher("/configuration.jsp").forward(request, response);
            if (session != null && session.isOpen()) {
                session.getTransaction().commit();
            }
        } finally {
            out.close();
            if (session != null && session.isConnected()) {
                session.close();
            }
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
